* {
  padding: 0px;
  margin: 0px;
  list-style: none;
  bottom: 0;
  text-decoration: none;
}
/*body{*/
/*  !* flex布局 https://www.runoob.com/w3cnote/flex-grammar.html *!*/
/*  display: flex;*/
/*  !* 子盒子中心对齐 *!*/
/*  justify-content: center;*/
/*  !* 定义项目在交叉轴上如何对齐 *!*/
/*  align-items: center;*/
/*  height: 100vh;*/
/*  background-color: rgb(170, 190, 250);*/
/*}*/

